A fluorophore-labeled human cell. A fluorophore (or fluorochrome, similarly to a chromophore) is a fluorescent chemical compound that can re-emit light upon light excitation. Fluorophores typically contain several combined aromatic groups, or planar or cyclic molecules with several Ï bonds.
IN THIS TOPIC. Pregnancy symptoms are different for everyone, and can vary from month to month and even from pregnancy to pregnancy. Find out what to expect, from the earliest pregnancy symptoms to the wooziness of morning sickness to the aches and pains of your third trimester.
Nausea or Vomiting During Pregnancy. Many women have problems with nausea and sometimes vomiting (morning sickness) during the first 16 weeks of pregnancy. For some women, morning sickness may be one of the first signs of pregnancy. The term morning sickness can be misleading, because symptoms can occur at any time of the day.